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Interspecific comparison of the performance of soaring migrants in relation to morphology, meteorological conditions and migration strategies.

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Interspecific comparison of the performance of soaring migrants in relation to morphology, meteorological conditions and migration strategies.

dc.contributor.author	Mellone, Ugo
dc.contributor.author	Klaassen, Raymond HG.
dc.contributor.author	García Ripollés, Clara
dc.contributor.author	Limiñana, Rubén
dc.contributor.author	López López, Pascual
dc.contributor.author	Pavón, Diego
dc.contributor.author	Strandberg, Roine
dc.contributor.author	Urios, Vicente
dc.contributor.author	Vardakis, Michalis
dc.contributor.author	Alerstam, Thomas
dc.date.accessioned	2020-04-08T17:20:36Z
dc.date.available	2020-04-08T17:20:36Z
dc.date.issued	2012
dc.identifier.citation	Mellone, Ugo Klaassen, Raymond HG. García Ripollés, Clara Limiñana, Rubén López López, Pascual Pavón, Diego Strandberg, Roine Urios, Vicente Vardakis, Michalis Alerstam, Thomas 2012 Interspecific comparison of the performance of soaring migrants in relation to morphology, meteorological conditions and migration strategies. Plos One 7 7 e39833
dc.identifier.uri	https://hdl.handle.net/10550/73851
dc.description.abstract	Background Performance of migrating birds can be affected by a number of intrinsic and extrinsic factors like morphology, meteorological conditions and migration strategies. We compared travel speeds of four raptor species during their crossing of the Sahara desert. Focusing the analyses on this region allows us to compare different species under equivalent conditions in order to disentangle which factors affect migratory performance. Methodology/Principal Finding We tracked raptors using GPS satellite transmitters from Sweden, Spain and Italy, and evaluated their migratory performance at both an hourly and a daily scale. Hourly data (flight speed and altitude for intervals of two hours) were analyzed in relation to time of day, species and season, and daily data (distance between roosting sites) in relation to species, season, day length and tailwind support. Conclusions/Significance Despite a clear variation in morphology, interspecific differences were generally very small, and did only arise in spring, with long-distance migrants (>5000 km: osprey and Western marsh-harrier) being faster than species that migrate shorter distances (Egyptian vulture and short-toed eagle). Our results suggest that the most important factor explaining hourly variation in flight speed is time of day, while at a daily scale, tailwind support is the most important factor explaining variation in daily distance, raising new questions about the consequences of possible future changes in worldwide wind patterns.
dc.language.iso	eng
dc.relation.ispartof	Plos One, 2012, vol. 7, num. 7, p. e39833
dc.subject	Biologia
dc.subject	Zoologia
dc.title	Interspecific comparison of the performance of soaring migrants in relation to morphology, meteorological conditions and migration strategies.
dc.type	journal article	es_ES
dc.date.updated	2020-04-08T17:20:37Z
dc.identifier.doi	10.1371/journal.pone.0039833
dc.identifier.idgrec	137055
dc.rights.accessRights	open access	es_ES